NFPA 780 PDF

Highlights

Primary changes in the new standard include:
Added requirements for lightning protection for additions to a protected structure
Revised definitions for surge protective device, surge arrestor, and surge protector, and the use of the proper terms corrected throughout the standard
Added criteria for prescriptive and performance for each surge protective device
New definitions for various connectors to clarify the proper application of NFPA 780 connector requirements
New requirements for protecting tank batteries
Be ready to perform every lightning protection system job to the latest standard.
Having the most relevant information is critical to reducing lightning risks. Perform your job with confidence and accuracy with NFPA 780, Standard for the Installation of Lightning Protection Systems, 2023 edition. (Print, 111 pp., 2023)

2023 Table of Contents

NFPA® 780 Standard for the Installation of Lightning Protection Systems 2023 Edition
Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Listed, Labeled, or Approved Components.
1.4 Retroactivity.
1.5 Mechanical Execution of Work.
1.6 Maintenance.
1.7 Periodic Inspection.
1.8 Units of Measurement.
Chapter 2 Referenced Publications
2.1 General.
2.2 NFPA Publications.
2.3 Other Publications.
2.4 References for Extracts in Mandatory Sections.
Chapter 3 Definitions
3.1 General.
3.2 NFPA Official Definitions.
3.3 General Definitions.
Chapter 4 General Requirements
4.1 General.
4.2 Materials.
4.3 Corrosion Protection.
4.4 Mechanical Damage or Displacement.
4.5 Strike Termination Devices.
4.6 Strike Termination Devices on Roofs.
4.7 Zones of Protection.
4.8 Conductors.
4.9 Conductor Fasteners.
4.10 Masonry Anchors.
4.11 Connectors.
4.12 Grounding Electrodes.
4.13 Common Bonding of Grounded Systems.
4.14 Potential Equalization.
4.15 Bonding of Metal Bodies.
4.16 Metal Antenna Masts and Supports.
4.17 Concealed Systems.
4.18 Structural Metallic Systems.
4.19 Surge Protection.
Chapter 5 Protection for Miscellaneous Structures and Special Occupancies
5.1 General.
5.2 Masts, Spires, Flagpoles.
5.3 Facilities That Handle or Process Combustible or Explosive Dust.
5.4 Metal Towers and Tanks.
5.5 Air-Inflated Structures.
5.6 Concrete Tanks and Silos.
5.7 Guyed Structures.
5.8 Rooftop Helipads.
5.9 Fabric Structures.
Chapter 6 Protection for Heavy-Duty Stacks
6.1 General.
6.2 Materials.
6.3 Strike Termination Devices.
6.4 Conductors.
6.5 Fasteners.
6.6 Splices.
6.7 Reinforced Concrete Stacks.
6.8 Bonding of Metal Bodies.
6.9 Grounding.
6.10 Metal Stacks.
6.11 Metal Guy Wires and Cables.
Chapter 7 Protection for Structures Containing Flammable Vapors, Flammable Gases, or Liquids That Can Give Off Flammable Vapors
7.1 Applicability.
7.2 Principles of Protection.
7.3 Protective Measures.
7.4 Operating Facilities (Non-Storage Applications).
7.5 Storage Tanks Under Pressure.
7.6 Aboveground Tanks at Atmospheric Pressure.
7.7 Earthen Containers at Atmospheric Pressure Containing Flammable Vapors or Liquids That Give Off Flammable Vapors.
7.8 Tank Batteries.
Chapter 8 Protection of Structures Housing Explosive Materials
8.1 Application.
8.2 General.
8.3 Types of Lightning Protection.
8.4 Grounding.
8.5 Bonding.
8.6 Surge Protection.
8.7 Protection for Specific Facilities.
8.8 Metallic Fences.
8.9 Maintenance and Inspection Plan.
8.10 Inspection, Testing, and Maintenance.
Chapter 9 Protection for Wind Turbines
9.1 General.
9.2 Fundamental Principles of Protection.
9.3 Protection of Electrical and Mechanical Control Systems.
9.4 Grounding.
Chapter 10 Protection for Watercraft
10.1 General.
10.2 Materials.
10.3 Strike Termination.
10.4 Conductors.
10.5 Grounding.
Chapter 11 Protection for Airfield Lighting Circuits
11.1 General.
11.2 Application.
11.3 Purpose.
11.4 Airfield Lighting Counterpoise System.
Chapter 12 Protection for Solar Arrays
12.1 General.
12.2 Fundamental Principles of Protection.
12.3 Strike Termination Devices.
12.4 Protection of Electrical and Mechanical Systems.
12.5 Grounding.
Annex A Explanatory Material
Annex B Principles of Lightning Protection
Annex C Explanation of Bonding Principles
Annex D Inspection and Maintenance of Lightning Protection Systems
Annex E Ground Measurement Techniques
Annex F Protection for Trees
Annex G Protection for Picnic Grounds, Playgrounds, Ball Parks, and Other Open Places
Annex H Protection for Livestock in Fields
Annex I Protection for Parked Aircraft
Annex J Protection of Smart Structures
Annex K Guide to International Standards Dealing with the Selection of SPDs for Use on Photovoltaic (PV) Installations
Annex L Lightning Risk Assessment
Annex M Guide for Personal Safety from Lightning
Annex N Considerations for Nonmetallic Tanks Containing Flammable Vapors or Liquids that Give Off Flammable Vapors
Annex O Informational References